Given:
The given function is:

The graph of the function is given.
To find:
The end behavior of the given function.
Solution:
We have,

From the given graph it is clear that the function approaches to -4 at x approaches negative infinite and the function approaches to negative infinite at x approaches infinite.
as 
as 
Therefore, the end behaviors of the given function are:
as 
as 
Answer:
2x^2-5x-12
Step-by-step explanation:
using foil this should be the answer, do you need the solution values?
Side of the playground would be : a²+a² = 16²
2a² = 256
a² = 128
a = √128
a = 11.31 m